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Article
Hans Jakober, Auteur ; Wolfgang Stauber, Auteur ; Franz Bairlein, Auteur ; Maren Voss, AuteurWe investigated the stable isotope signatures (delta(15)N and delta(13)C) of greater feather covers of male and female Red-backed Shrikes (Lanius collurio) of a southern German population. Male and female birds did not differ in their isotope si[...]
Article
Hans Jakober, Auteur ; Wolfgang Stauber, AuteurIn 1998, a colour- ringed pair of Red-backed Shrike arrived early in its breeding territory in Southern Germany. The female laid the first egg already on May 4th, the earliest laying date known in Europe. About six days after fledging of the 5 j[...]
Article
Gilberto Pasinelli, Auteur ; Michael Schaub, Auteur ; Guido Haefliger, Auteur ; Monika Frey, Auteur ; Hans Jakober, Auteur ; Mathis Mueller, Auteur ; Wolfgang Stauber, Auteur ; Piotr Tryjanowski, Auteur ; Jean-Luc Zollinger, Auteur ; Lukas Jenni, AuteurP>1. Populations of plants and animals typically fluctuate because of the combined effects of density-dependent and density-independent processes. The study of these processes is complicated by the fact that population sizes are typically not kn[...]
Article
Hans Jakober, Auteur ; Wolfgang Stauber, AuteurIn a breeding population of Red-backed Shrikes (Lanius collurio) in southern Germany we examined different measures of wings from 1991 to 1997. In each parameter characterizing wing shape there was a significant difference between adults and gro[...]
